A controversial cull of ruddy ducks in the UK has cut numbers to just 120

The government says about 4,400 of the birds were shot dead over the past five years.

Supporters of the cull, including the RSPB, say it is needed to protect other species from extinction. Opponents argue it is expensive and unnecessary.

The ruddy duck is originally from the United States, and came to the UK in the 1940s.

Experts say it has threatened the existence of the white-headed duck in Spain by interbreeding with it.

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